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From: Johannes Sixt <j6t@kdbg.org>
To: Eric Sunshine <sunshine@sunshineco.com>
Cc: "Elijah Newren" <newren@gmail.com>,
	"Git List" <git@vger.kernel.org>, "Jeff King" <peff@peff.net>,
	"Jonathan Nieder" <jrnieder@gmail.com>,
	"SZEDER Gábor" <szeder@ira.uka.de>,
	"Stefan Beller" <sbeller@google.com>,
	"Jonathan Tan" <jonathantanmy@google.com>
Subject: Re: [PATCH 17/29] t: use test_must_fail() instead of checking exit code manually
Date: Tue, 26 Jun 2018 20:05:55 +0200	[thread overview]
Message-ID: <29d090a2-bbe4-0d87-6dda-037ae675d4a3@kdbg.org> (raw)
In-Reply-To: <CAPig+cRTG625H3CF1Zw30vQt2W8uKf1xLxVaQni2YbJ=xAif2g@mail.gmail.com>

Am 26.06.2018 um 11:21 schrieb Eric Sunshine:
> On Tue, Jun 26, 2018 at 4:58 AM Elijah Newren <newren@gmail.com> wrote:
>> On Tue, Jun 26, 2018 at 12:29 AM, Eric Sunshine <sunshine@sunshineco.com> wrote:
>>> +               p4 help client &&
>>> +               test_must_fail p4 help nosuchcommand
>>
>> same question?
> 
> Same answer. Not shown in this patch, but just above the context lines
> you will find this comment in the file:
> 
>      # We rely on this behavior to detect for p4 move availability.
> 
> which means that the test is really interested in being able to
> reliably detect if a sub-command is or is not available. So, despite
> the (somewhat) misleading test title, this test doesn't care about the
> exact error code but rather cares only that "p4 help nosuchcommand"
> errors out, period. Hence, test_must_fail() again agrees with the
> spirit of the test.

test_must_fail ensures that only "proper" failures are diagnosed as 
expected; failures due to signals such as SEGV are not expected failures.

In the test suite we expect all programs that are not our "git" to work 
correctly; in particular, that they do not crash on anything that we ask 
them to operate on. Under this assumption, the protection given by 
test_must_fail is not needed.

Hence, these lines should actually be

		p4 help client &&
		! p4 help nosuchcommand

-- Hannes

  reply	other threads:[~2018-06-26 18:06 UTC|newest]

Thread overview: 123+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-26  7:29 [PATCH 00/29] t: detect and fix broken &&-chains in subshells Eric Sunshine
2018-06-26  7:29 ` [PATCH 01/29] t7508: use test_when_finished() instead of managing exit code manually Eric Sunshine
2018-06-26  7:29 ` [PATCH 02/29] t0001: use "{...}" block around "||" expression rather than subshell Eric Sunshine
2018-06-26  7:29 ` [PATCH 03/29] t1300: use sane_unset() to avoid breaking &&-chain Eric Sunshine
2018-06-26  7:29 ` [PATCH 04/29] t3303: use standard here-doc tag "EOF" to avoid fooling --chain-lint Eric Sunshine
2018-06-26  7:29 ` [PATCH 05/29] t5505: modernize and simplify hard-to-digest test Eric Sunshine
2018-06-26  7:29 ` [PATCH 06/29] t6036: fix broken "merge fails but has appropriate contents" tests Eric Sunshine
2018-06-26  8:44   ` Elijah Newren
2018-06-26  7:29 ` [PATCH 07/29] t7201: drop pointless "exit 0" at end of subshell Eric Sunshine
2018-06-26  7:29 ` [PATCH 08/29] t7400: fix broken "submodule add/reconfigure --force" test Eric Sunshine
2018-06-27 18:04   ` Stefan Beller
2018-06-26  7:29 ` [PATCH 09/29] t7810: use test_expect_code() instead of hand-rolled comparison Eric Sunshine
2018-06-26  7:29 ` [PATCH 10/29] t9001: fix broken "invoke hook" test Eric Sunshine
2018-06-26 17:07   ` Jonathan Tan
2018-06-26  7:29 ` [PATCH 11/29] t9104: use "{...}" block around "||" expression rather than subshell Eric Sunshine
2018-06-26  7:29 ` [PATCH 12/29] t9401: drop unnecessary nested subshell Eric Sunshine
2018-06-26  7:29 ` [PATCH 13/29] t/lib-submodule-update: fix broken "replace submodule must-fail" test Eric Sunshine
2018-06-27 18:30   ` [PATCH] t/lib-submodule-update: fix absorbing test Stefan Beller
2018-06-27 18:38     ` Eric Sunshine
2018-06-26  7:29 ` [PATCH 14/29] t: drop subshell with missing &&-chain in favor of simpler construct Eric Sunshine
2018-06-26 19:31   ` Junio C Hamano
2018-06-26 20:06     ` Eric Sunshine
2018-06-26  7:29 ` [PATCH 15/29] t: drop unnecessary terminating semicolons in subshell Eric Sunshine
2018-06-26  7:29 ` [PATCH 16/29] t: use test_might_fail() instead of manipulating exit code manually Eric Sunshine
2018-06-26  7:29 ` [PATCH 17/29] t: use test_must_fail() instead of checking " Eric Sunshine
2018-06-26  7:59   ` Luke Diamand
2018-06-26  8:58   ` Elijah Newren
2018-06-26  9:21     ` Eric Sunshine
2018-06-26 18:05       ` Johannes Sixt [this message]
2018-06-26 18:14         ` Eric Sunshine
2018-06-26 21:00           ` Johannes Sixt
2018-06-26  7:29 ` [PATCH 18/29] t0000-t0999: fix broken &&-chains in subshells Eric Sunshine
2018-06-26  7:29 ` [PATCH 19/29] t1000-t1999: " Eric Sunshine
2018-06-26  7:29 ` [PATCH 20/29] t2000-t2999: " Eric Sunshine
2018-06-26  7:29 ` [PATCH 21/29] t3000-t3999: " Eric Sunshine
2018-06-26  7:29 ` [PATCH 22/29] t3030: " Eric Sunshine
2018-06-26  7:29 ` [PATCH 23/29] t4000-t4999: " Eric Sunshine
2018-06-26  7:29 ` [PATCH 24/29] t5000-t5999: " Eric Sunshine
2018-06-26  7:29 ` [PATCH 25/29] t6000-t6999: " Eric Sunshine
2018-06-26  7:29 ` [PATCH 26/29] t7000-t7999: " Eric Sunshine
2018-06-26  7:29 ` [PATCH 27/29] t9000-t9999: " Eric Sunshine
2018-06-26  7:30 ` [PATCH 28/29] t9119: " Eric Sunshine
2018-06-26  7:30 ` [PATCH 29/29] t/test-lib: teach --chain-lint to detect " Eric Sunshine
2018-06-26 19:15   ` Junio C Hamano
2018-06-26 19:52     ` Eric Sunshine
2018-06-26 20:17       ` Jeff King
2018-06-26 20:22         ` Jeff King
2018-06-26 20:59           ` Eric Sunshine
2018-06-26 21:33           ` Elijah Newren
2018-06-26 21:42             ` Eric Sunshine
2018-06-26 20:46         ` Eric Sunshine
2018-06-26 21:01           ` Jeff King
2018-06-26 21:13             ` Eric Sunshine
2018-06-28 14:35               ` Jeff King
2018-06-27  2:15             ` Elijah Newren
2018-06-27  6:27               ` Johannes Sixt
2018-06-27  6:48                 ` Eric Sunshine
2018-06-28 14:37               ` Jeff King
2018-06-26 21:09         ` Junio C Hamano
2018-06-26  9:20 ` [PATCH 00/29] t: detect and fix " Elijah Newren
2018-06-26  9:31   ` Eric Sunshine
2018-06-26 15:34     ` Elijah Newren
2018-06-26 19:38 ` Junio C Hamano
2018-06-26 21:25   ` Eric Sunshine
2018-06-26 22:31     ` Junio C Hamano
2018-06-27  0:22       ` Jonathan Nieder
2018-07-11  6:46 ` [PATCH v2 00/10] detect " Eric Sunshine
2018-07-11  6:46   ` [PATCH v2 01/10] t/test-lib: teach --chain-lint to " Eric Sunshine
2018-07-11 21:37     ` Junio C Hamano
2018-07-12 10:50       ` Eric Sunshine
2018-07-12 16:56         ` Jeff King
2018-07-12 19:32           ` Eric Sunshine
2018-07-12 19:54             ` Junio C Hamano
2018-07-30 18:13     ` Jonathan Nieder
2018-07-30 19:06       ` [PATCH 0/2] subtree: fix &&-chain and simplify tests (Re: [PATCH v2 01/10] t/test-lib: teach --chain-lint to detect broken &&-chains in subshells) Jonathan Nieder
2018-07-30 19:07         ` [PATCH 1/2] subtree test: add missing && to &&-chain Jonathan Nieder
2018-07-30 19:07         ` [PATCH 2/2] subtree test: simplify preparation of expected results Jonathan Nieder
2018-07-30 20:25       ` [PATCH v2 01/10] t/test-lib: teach --chain-lint to detect broken &&-chains in subshells Eric Sunshine
2018-07-30 20:59         ` Jonathan Nieder
2018-07-30 21:38           ` Eric Sunshine
2018-07-31 12:50             ` Jeff King
2018-07-31 18:55               ` Eric Sunshine
2018-07-31 19:08                 ` Jeff King
2018-08-23 18:02     ` Ævar Arnfjörð Bjarmason
2018-08-23 18:27       ` Eric Sunshine
2018-07-11  6:46   ` [PATCH v2 02/10] t/Makefile: add machinery to check correctness of chainlint.sed Eric Sunshine
2018-07-11  6:46   ` [PATCH v2 03/10] t/chainlint: add chainlint "basic" test cases Eric Sunshine
2018-07-11  6:46   ` [PATCH v2 04/10] t/chainlint: add chainlint "whitespace" " Eric Sunshine
2018-07-11  6:46   ` [PATCH v2 05/10] t/chainlint: add chainlint "one-liner" " Eric Sunshine
2018-07-11  6:46   ` [PATCH v2 06/10] t/chainlint: add chainlint "nested subshell" " Eric Sunshine
2018-07-11  6:46   ` [PATCH v2 07/10] t/chainlint: add chainlint "loop" and "conditional" " Eric Sunshine
2018-07-11  6:46   ` [PATCH v2 08/10] t/chainlint: add chainlint "cuddled" " Eric Sunshine
2018-07-11  6:46   ` [PATCH v2 09/10] t/chainlint: add chainlint "complex" " Eric Sunshine
2018-07-11  6:46   ` [PATCH v2 10/10] t/chainlint: add chainlint "specialized" " Eric Sunshine
2018-08-07  8:21   ` [PATCH 0/5] chainlint: improve robustness against "unusual" shell coding Eric Sunshine
2018-08-07  8:21     ` [PATCH 1/5] chainlint: match arbitrary here-docs tags rather than hard-coded names Eric Sunshine
2018-08-08 22:50       ` Jeff King
2018-08-09  5:58         ` Eric Sunshine
2018-08-09 14:26           ` Jeff King
2018-08-07  8:21     ` [PATCH 2/5] chainlint: recognize multi-line $(...) when command cuddled with "$(" Eric Sunshine
2018-08-07  8:21     ` [PATCH 3/5] chainlint: let here-doc and multi-line string commence on same line Eric Sunshine
2018-08-07  8:21     ` [PATCH 4/5] chainlint: recognize multi-line quoted strings more robustly Eric Sunshine
2018-08-07  8:21     ` [PATCH 5/5] chainlint: add test of pathological case which triggered false positive Eric Sunshine
2018-08-08 22:53     ` [PATCH 0/5] chainlint: improve robustness against "unusual" shell coding Jeff King
2018-08-09  0:44       ` Junio C Hamano
2018-08-13  8:47     ` [PATCH v2 0/6] " Eric Sunshine
2018-08-13  8:47       ` [PATCH v2 1/6] chainlint: match arbitrary here-docs tags rather than hard-coded names Eric Sunshine
2018-08-13  8:47       ` [PATCH v2 2/6] chainlint: match 'quoted' here-doc tags Eric Sunshine
2018-08-13 19:27         ` Junio C Hamano
2018-08-13 20:12           ` Eric Sunshine
2018-08-13  8:47       ` [PATCH v2 3/6] chainlint: recognize multi-line $(...) when command cuddled with "$(" Eric Sunshine
2018-08-13  8:47       ` [PATCH v2 4/6] chainlint: let here-doc and multi-line string commence on same line Eric Sunshine
2018-08-13  8:47       ` [PATCH v2 5/6] chainlint: recognize multi-line quoted strings more robustly Eric Sunshine
2018-08-13  8:47       ` [PATCH v2 6/6] chainlint: add test of pathological case which triggered false positive Eric Sunshine
2018-08-15 18:45       ` [PATCH v3 0/6] chainlint: improve robustness against "unusual" shell coding Eric Sunshine
2018-08-15 18:45         ` [PATCH v3 1/6] chainlint: match arbitrary here-docs tags rather than hard-coded names Eric Sunshine
2018-08-15 18:45         ` [PATCH v3 2/6] chainlint: match quoted here-doc tags Eric Sunshine
2018-08-15 18:45         ` [PATCH v3 3/6] chainlint: recognize multi-line $(...) when command cuddled with "$(" Eric Sunshine
2018-08-15 18:45         ` [PATCH v3 4/6] chainlint: let here-doc and multi-line string commence on same line Eric Sunshine
2018-08-15 18:45         ` [PATCH v3 5/6] chainlint: recognize multi-line quoted strings more robustly Eric Sunshine
2018-08-15 18:45         ` [PATCH v3 6/6] chainlint: add test of pathological case which triggered false positive Eric Sunshine
2018-08-29  9:45         ` [PATCH] chainlint: match "quoted" here-doc tags Eric Sunshine
2018-08-29 17:57           ` Junio C Hamano

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